The famous nocturnal Hex hatch of the Midwest (and a few other lucky locations) stirs to the surface mythically large brown trout that only touch streamers for the rest of the year.
Option 1 | Option 2 |
---|---|
Metanotal sa3 typically consisting of cluster of setae arising from small rounded or ovoid sclerite (sf 19.77, 19.372-19.374) | Metanotal sa3 consisting of a single seta with or without sclerite (sf 19.61) |
Prosternal horn present (sf 19.70, 19.368) | Prosternal horn absent |
Larvae construct tubular portable cases, typically of plant materials (many source figs) | Larvae either without portable tubular cases, or with tortoise-like domed cases of rock fragments (sf 19.38) |
Remaining families: Glossosomatidae, Hydrobiosidae, and Rhyacophilidae | |
2 Example Specimens | 5 Example Specimens |
Phryganeidae | Go to Couplet 9 |